Information about Geographic Areas - Long-Lived Assets by Geographic Area (Detail) - USD ($) $ in Thousands		Jul. 31, 2019	Jan. 31, 2019
Long-lived assets by geography
Total long-lived assets	[1]	$ 54,354	$ 54,966
North America
Long-lived assets by geography
Total long-lived assets		50,088	51,748
Europe and other
Long-lived assets by geography
Total long-lived assets		2,666	1,783
Asia Pacific
Long-lived assets by geography
Total long-lived assets		$ 1,600	$ 1,435

[1] We adopted ASU 2016-02, “Leases” (Topic 842) using the modified retrospective method as of February 1, 2019 and elected the transition option that allows us not to restate the comparative periods in our financial statements in the year of adoption.